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Finding the Fourth Proportional to 586,935.90, 880,403.85 and 306,999.90

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Solution

The fourth proportional to 586,935.90, 880,403.85 and 306,999.90 is: 460,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,935.90 : 880,403.85 = 306,999.90 : x
  2. Step 2: Convert to fraction form
    586,935.90/880,403.85 = 306,999.90/x
  3. Step 3: Cross multiply
    586,935.90x = 880,403.85 × 306,999.90
  4. Step 4: Simplify right side
    586,935.90x = 270,283,893,909.62
  5. Step 5: Solve for x
    x = 270,283,893,909.62/586,935.90
  6. Step 6: Final answer
    x = 460,499.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.